// Basic cookie handlingfunction CookieManager() {}CookieManager.prototype = new BiObject;CookieManager.setCookie = function (sName, sValue, nDays) {	var expires = "";	if (typeof nDays == "number") {		var d = new Date();		d.setTime(d.getTime() + nDays * 24 * 60 * 60 * 1000);		expires = "; expires=" + d.toGMTString();	}	document.cookie = sName + "=" + escape(sValue) + expires + "; path=/";};CookieManager.getCookie = function (sName) {	var re = new RegExp("(\;|^)[^;]*(" + sName + ")\=([^;]*)(;|$)");	var res = re.exec(document.cookie);	return res != null ? unescape(res[3]) : null;};CookieManager.removeCookie = function (name) {	CookieManager.setCookie(name, "", -1);};